Thank you for that comment. "need polish some rough edges" I agree there is allot of room for improvement...
"like IMHO the abuse of rounded corners" Don't agree there, in the sense of volume, as I see it they can be rounded or not rounded, so all of them rounded or not, some rounded some not would be inconsistent.
A more sharp globally less rounded theme, sure. But not in just some places...
I should note that depending in the dpi of your screen that may vary as they are pixel based, should also note that studies indicate that people feel less comfortable with hard 90 degree angles, so a bit of roundness makes a theme look more #safe" and inviting...

Any way, thank you for the kind comments, and I think i understood what you meent... Globally I agree we need more quality themes with different design pasterns, oxygen is band because it tries to make every one happy, and we can only fail wen trying to do that...